import React from 'react'

export default class HistoryValue extends React.Component {

	render(){
		return(
			<div className="history">
			<h2>计算过程</h2>
			<h2>计算过程</h2>
			<h2>计算过程</h2>
			<h2>计算过程</h2>s
				{this.props.history}
			</div>

			);
	}
} 